Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Statement of Financial Position [Abstract]    
Accounts receivable, Allowance for doubtful accounts $ 847 $ 663
Common stock, par value $ 0.0001 $ 0.0001
Common stock, shares authorized 350,000,000 350,000,000
Common stock, shares issued 94,798,802 94,515,344
Common stock, shares outstanding 94,798,802 94,515,344